[BSOD] While playing Battlefield 3 multiplayer

For the past week, I was playing Battlefield 3 on campaign and it was all fine. Today, I started playing multiplayer and the Blue Screen of Death appeared first at 20 minutes into an online match and then later about 45 minutes in an online match. I have not played since. Can someone please help me?

The attachment below is Method one. RAMMon was not unfortunately not working for me, I was able to install but not able to open it as it asked me to: run in DEBUGMODE command line flag and send the generated log files to hep@passmark.com. Sorry about that. Also tell me if I left out any necessary information in the attachment.